Sant'Elia a Pianisi is a comune in the Province of Campobasso in the Italian region Molise, located about 20 kilometres northeast of Camp…Sant'Elia a Pianisi is a comune in the Province of Campobasso in the Italian region Molise, located about 20 kilometres northeast of Campobasso. As of 31 December 2004, it had a population of 2,178 and an area of 67.8 square kilometres.